Raise ParseError for non-numeric strings in numeric fields in Ruby and PHP JSON parsing.

This fixes Ruby and PHP to be conformant with the Protobuf's JSON spec. Note this fix is not accompanied by a major version bump for Ruby or PHP, but was pre-announced in https://engdoc.corp.google.com/eng/doc/devguide/proto/news/2024-11-07.md#ruby-and-php-errors-in-json-parsing and landed as a warning in 29.x.

PiperOrigin-RevId: 704855202

Author: zhangskz

conformance/failure_list_jruby_ffi.txt

@@ -1,11 +1 @@
-Required.*.JsonInput.DoubleFieldEmptyString                 # Should have failed to parse, but didn't.
-Required.*.JsonInput.FloatFieldEmptyString                  # Should have failed to parse, but didn't.
-Required.*.JsonInput.Int32FieldEmptyString                  # Should have failed to parse, but didn't.
-Required.*.JsonInput.Int64FieldEmptyString                  # Should have failed to parse, but didn't.
-Required.*.JsonInput.Uint32FieldEmptyString                 # Should have failed to parse, but didn't.
-Required.*.JsonInput.Uint64FieldEmptyString                 # Should have failed to parse, but didn't.
-Required.*.JsonInput.DoubleFieldStringValueNonNumeric       # Should have failed to parse, but didn't.
-Required.*.JsonInput.DoubleFieldStringValuePartiallyNumeric # Should have failed to parse, but didn't.
-Required.*.JsonInput.FloatFieldStringValueNonNumeric        # Should have failed to parse, but didn't.
-Required.*.JsonInput.FloatFieldStringValuePartiallyNumeric  # Should have failed to parse, but didn't.
 Required.*.JsonInput.Int32FieldQuotedExponentialValue.*     # Failed to parse input or produce output.

conformance/failure_list_php_c.txt

@@ -1,14 +1,4 @@
 Recommended.Proto2.JsonInput.FieldNameExtension.Validator
-Required.*.JsonInput.DoubleFieldEmptyString                 # Should have failed to parse, but didn't.
-Required.*.JsonInput.FloatFieldEmptyString                  # Should have failed to parse, but didn't.
-Required.*.JsonInput.Int32FieldEmptyString                  # Should have failed to parse, but didn't.
-Required.*.JsonInput.Int64FieldEmptyString                  # Should have failed to parse, but didn't.
-Required.*.JsonInput.Uint32FieldEmptyString                 # Should have failed to parse, but didn't.
-Required.*.JsonInput.Uint64FieldEmptyString                 # Should have failed to parse, but didn't.
-Required.*.JsonInput.DoubleFieldStringValueNonNumeric       # Should have failed to parse, but didn't.
-Required.*.JsonInput.DoubleFieldStringValuePartiallyNumeric # Should have failed to parse, but didn't.
-Required.*.JsonInput.FloatFieldStringValueNonNumeric        # Should have failed to parse, but didn't.
-Required.*.JsonInput.FloatFieldStringValuePartiallyNumeric  # Should have failed to parse, but didn't.
 Required.*.JsonInput.Int32FieldQuotedExponentialValue.*     # Failed to parse input or produce output.
 Required.Proto2.JsonInput.BoolFieldFalse.JsonOutput
 Required.Proto2.JsonInput.BoolFieldFalse.ProtobufOutput

conformance/failure_list_ruby.txt

@@ -1,11 +1 @@
-Required.*.JsonInput.DoubleFieldEmptyString                 # Should have failed to parse, but didn't.
-Required.*.JsonInput.FloatFieldEmptyString                  # Should have failed to parse, but didn't.
-Required.*.JsonInput.Int32FieldEmptyString                  # Should have failed to parse, but didn't.
-Required.*.JsonInput.Int64FieldEmptyString                  # Should have failed to parse, but didn't.
-Required.*.JsonInput.Uint32FieldEmptyString                 # Should have failed to parse, but didn't.
-Required.*.JsonInput.Uint64FieldEmptyString                 # Should have failed to parse, but didn't.
-Required.*.JsonInput.DoubleFieldStringValueNonNumeric       # Should have failed to parse, but didn't.
-Required.*.JsonInput.DoubleFieldStringValuePartiallyNumeric # Should have failed to parse, but didn't.
-Required.*.JsonInput.FloatFieldStringValueNonNumeric        # Should have failed to parse, but didn't.
-Required.*.JsonInput.FloatFieldStringValuePartiallyNumeric  # Should have failed to parse, but didn't.
 Required.*.JsonInput.Int32FieldQuotedExponentialValue.*     # Failed to parse input or produce output.

php/ext/google/protobuf/message.c

@@ -735,9 +735,6 @@ PHP_METHOD(Message, mergeFromJsonString) {
   switch (result) {
     case kUpb_JsonDecodeResult_Ok:
       break;
-    case kUpb_JsonDecodeResult_OkWithEmptyStringNumerics:
-      zend_error(E_USER_WARNING, "%s", upb_Status_ErrorMessage(&status));
-      return;
     case kUpb_JsonDecodeResult_Error:
       zend_throw_exception_ex(NULL, 0, "Error occurred during parsing: %s",
                               upb_Status_ErrorMessage(&status));

ruby/ext/google/protobuf_c/message.c

@@ -1046,9 +1046,6 @@ static VALUE Message_decode_json(int argc, VALUE* argv, VALUE klass) {
   switch (result) {
     case kUpb_JsonDecodeResult_Ok:
       break;
-    case kUpb_JsonDecodeResult_OkWithEmptyStringNumerics:
-      rb_warn("%s", upb_Status_ErrorMessage(&status));
-      break;
     case kUpb_JsonDecodeResult_Error:
       rb_raise(cParseError, "Error occurred during parsing: %s",
                upb_Status_ErrorMessage(&status));

ruby/lib/google/protobuf/ffi/ffi.rb

@@ -38,7 +38,6 @@ class FFI
 
       ## JSON Decoding results
       Upb_JsonDecodeResult_Ok = 0
-      Upb_JsonDecodeResult_OkWithEmptyStringNumerics = 1
       Upb_JsonDecodeResult_Error = 2
 
       typedef :pointer, :Array

ruby/lib/google/protobuf/ffi/message.rb

@@ -272,8 +272,6 @@ def self.decode_json(data, options = {})
             status = Google::Protobuf::FFI::Status.new
             result = Google::Protobuf::FFI.json_decode_message_detecting_nonconformance(data, data.bytesize, message.instance_variable_get(:@msg), message.class.descriptor, pool_def, decoding_options, message.instance_variable_get(:@arena), status)
             case result
-            when Google::Protobuf::FFI::Upb_JsonDecodeResult_OkWithEmptyStringNumerics
-              warn Google::Protobuf::FFI.error_message(status)
             when Google::Protobuf::FFI::Upb_JsonDecodeResult_Error
               raise ParseError.new "Error occurred during parsing: #{Google::Protobuf::FFI.error_message(status)}"
             end

ruby/tests/encode_decode_test.rb

@@ -38,36 +38,14 @@ def hex2bin(s)
 
 class NonConformantNumericsTest < Test::Unit::TestCase
   def test_empty_json_numerics
-    if defined? JRUBY_VERSION and Google::Protobuf::IMPLEMENTATION != :FFI
-      # In a future version, CRuby and JRuby FFI will also have this behavior.
-      assert_raises Google::Protobuf::ParseError do
-        msg = ::BasicTestProto2::TestMessage.decode_json('{"optionalInt32":""}')
-      end
-    else
-      warnings = CaptureWarnings.capture {
-        msg = ::BasicTestProto2::TestMessage.decode_json('{"optionalInt32":""}')
-        assert_equal 0, msg.optional_int32
-        assert msg.has_optional_int32?
-      }
-      assert_equal 1, warnings.size
-      assert_match "Empty string is not a valid number (field: basic_test_proto2.TestMessage.optional_int32)", warnings[0]
+    assert_raises Google::Protobuf::ParseError do
+      msg = ::BasicTestProto2::TestMessage.decode_json('{"optionalInt32":""}')
     end
   end
 
   def test_trailing_non_numeric_characters
-    if defined? JRUBY_VERSION and Google::Protobuf::IMPLEMENTATION != :FFI
-      # In a future version, CRuby and JRuby FFI will also have this behavior.
-      assert_raises Google::Protobuf::ParseError do
-        msg = ::BasicTestProto2::TestMessage.decode_json('{"optionalDouble":"123abc"}')
-      end
-    else
-      warnings = CaptureWarnings.capture {
-        msg = ::BasicTestProto2::TestMessage.decode_json('{"optionalDouble":"123abc"}')
-        assert_equal 123, msg.optional_double
-        assert msg.has_optional_double?
-      }
-      assert_equal 1, warnings.size
-      assert_match "Non-number characters in quoted number (field: basic_test_proto2.TestMessage.optional_double)", warnings[0]
+    assert_raises Google::Protobuf::ParseError do
+      msg = ::BasicTestProto2::TestMessage.decode_json('{"optionalDouble":"123abc"}')
     end
   end
 end

upb/json/decode.c

@@ -674,7 +674,7 @@ static int64_t jsondec_strtoint64(jsondec* d, upb_StringView str) {
 static void jsondec_checkempty(jsondec* d, upb_StringView str,
                                const upb_FieldDef* f) {
   if (str.size != 0) return;
-  d->result = kUpb_JsonDecodeResult_OkWithEmptyStringNumerics;
+  d->result = kUpb_JsonDecodeResult_Error;
   upb_Status_SetErrorFormat(d->status,
                             "Empty string is not a valid number (field: %s). "
                             "This will be an error in a future version.",
@@ -782,7 +782,7 @@ static upb_MessageValue jsondec_double(jsondec* d, const upb_FieldDef* f) {
         char* end;
         val.double_val = strtod(str.data, &end);
         if (end != str.data + str.size) {
-          d->result = kUpb_JsonDecodeResult_OkWithEmptyStringNumerics;
+          d->result = kUpb_JsonDecodeResult_Error;
           upb_Status_SetErrorFormat(
               d->status,
               "Non-number characters in quoted number (field: %s). "

upb/json/decode.h

@@ -26,7 +26,6 @@ enum { upb_JsonDecode_IgnoreUnknown = 1 };
 
 enum {
   kUpb_JsonDecodeResult_Ok = 0,
-  kUpb_JsonDecodeResult_OkWithEmptyStringNumerics = 1,
   kUpb_JsonDecodeResult_Error = 2,
 };